Stock and die.



PATENTED AUG. 7, 1906-.

l Il

3. f Hl h u 6 I, Iuvfmv N- TOBIASl STOCK AND DIE.

N FIL PPPPPPPPPPPPPPPPPPPPPPPPPP 5.

l www wk i Q. I

wwww

the same.

NITEB STATES PATENT onirica.

'STOCK 4-Specicaton of Letters Patent.

ZAND 'DIE.

Application filed October I4. 1905. 'SerialfNol 282,755.

To all whom if `may concern:

\Be it ilmown that .-I, NEUMAN TIoBLAs, a subject of the King of Great yBritain,and a resident of Kingston, have iinvented .a new and Improved Stock and Die, .of .which the following is a f'full,1

clear, and exact-description.

The invention relates new and improved stock anddie arranged to @permit Aconvenient and faccurate cutting of right :and lefthand single threads of `the same or different-pitch.

The .invention consists .of novel yfeatures fand parts and combinations ofthe same, as will be more fully described-hereinafter and then Lpointed' out 'in the claims.

A practical embodiment of the invention is represented .in the yaccompanying draw-.

ings, forming a part of thisspecification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a plan view of the improvement arranged for cutting left-hand threads. Fig. 2 is an enlarged sectional plan view of Fig. 3 is a sectional side elevation of one ofthe stock-sections andits die-section on the line 3 3 in Fig. 2. Fig. 4 is a per spective view of one of the die-sections. Fig. 5 is a plan view of a modified form of the improvement arranged for cutting right-hand threads. Fig. 6 is an enlarged sectional plan view of the same. Fig. 7 is a sectional side elevation of one of the stock-sections and its die-section, and Fig. S is a perspective view of one of the die-sections.

The implement shown in Figs. l, 2, 3, and 4 consists, essentially, of a stock A and a die B held in the said stock, the latter being made in sections A and A2, having handles A3 and A4 and fastened together by suitable screws C. The stock A is formed with the usual aperture for receiving the die B, and

the latter is made in sections B and B2, provided at their opposite faces with the usual thread-cutting teeth B3 and B4. The diesections B and B2 are provided at their outer faces with transversely-'extending trunnions B7 and B6, mounted to turn in suitable bearings formed in the corresponding stock-sec tions A and A2, as plainly illustrated in Fig. 2, the axis of the said trunnions B5 and 6 coinciding and standing at a right angle to the axis of the die-sections to permit of swinging the die-sections B and B2 in an up or down direction to bring the thread-cut i nagaan B3 Jamaica, West IIndies,

to metal tools .andi implements; land its object is to `provide av and B4 -4into lsuch frelative'lposr tions as to permit cutting-:either lrigiht-hand lor left-.handithreads l iIn order to fallow adjustment fof the diesections B and B2 and to hold *the .same sin the adjusted positionfthelfollowingdevice is provided: The die-section 2B iis provided with sidewise-extending arms B7 andiB'f, litting looselyzinlcorresponding recesses .formed 4in 'thestoclesection A., and 'the die-section B2 `:is likewise 4provided iwith sidewise+eXtend ing arms B2and B12, Vfitting"loosely into corresponding .frecesses arranged @on the stocksection A2. :Byfreference to Fig. 2itxwill2be noticed that thesidesarms fB7 and vBQarelocated onoppositesides of ltheir corresponding stock-sections A and A2. Each of the side arms fBs and B12 isengagedion opposite faces .by set-screws D and 4D screwingl'mrthe corresponding .section .A `and .A2 to allow '..of swinging the corresponding die-section into either of two positions to permit of cutting either right-hand or left-hand threads.

In the modified form illustrated in Figs. 5, 6, 7, and 8 the stock E is formed of the sec tions E and E2, fastened together by screws C and provided with handles E3 and E4. The die F, I make in sections F and F2, mounted to swing in the stock-sections E and E2, the said die-sections being provided on their opposite faces with the usual teeth F3 and F4 for cutting left or right hand threads. The die-sections F and F2 are also provided with transversely-extending trunnions F5 and F2, mounted to turn in suitable bearings .arranged in the stock-sections E and E2, and the said trunnions F5 and F screw nuts F7 and F8 against the outer faces of the stocksections E and E2 to securely hold the diesections F and F2 against turning after they are adjusted to the desired position.

As shown in Figs. 7 and 8, each of the diesections F and F2 has circular sides fitting correspondingly-shaped side walls in the recesses in which they are mounted to permit the sections to readily turn whenever it is desired to adjust the dies for cutting left-hand or right-hand threads. In order to limit the turning motion of each die-section F and F2, one side thereof is provided with a transversely-eXtending recess F9, fitting upon a stop-lug D5, formed on the corresponding stock-section E and E2. By loosening the -nuts F7 and F8 the operator can readily turn l the die-sections F and F2 so as to bring the PatentedAug. .7, 19016.

on the outer threaded ends of IIO cutting-teeth F3 and F4 in such relative position that the die will cut either left-hand or right-hand threads. When the desired adjustment has been made, the nuts F7 and Fs are screwed up to securely lock the die-sections F and F2 in place. rIhe dies D and F having cutting-teeth of different pitch may be readily exchanged for the ones used at the time to allow of using the same stock for lthe sets of dies for cutting right-hand or left-hand single threads of different pitch.

The implement is very simple and durable in construction and is not liable to get easily out of order.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A stock and die comprising a sectional stock, each section having a transverse diereceiving recess with openings in the ends and side thereof, and a die comprising a section fitting in each of the recesses, each of said sections having a trunnion tting in the opening in the side wall of the recess, and lugs engaging the openings in the end Walls, one of said lugs being of greater length than the other, and said longer lug projecting in i opposite direction from the corresponding lug on the other section, and set-screws traversing the stock and engaging each side of said longer lugs, whereby to swing the sections upon the trunnions to vary the pitch and direction of the thread, the shorter lug by its engagement with the Wall ofthe recess forming a support for the adjacent side of the Adie-section.

2. A stock and die, comprising a sectional stock, each section having a transverse diereceiving recess with openings in the ends and side thereof, and a die comprising a section fitting in each of the recesses, each of said sections having a trunnion fitting in the opening in the side of the recess, and lugs engaging the openings in the ends, and setscrews traversing the stock and engaging each side of one of the lugs whereby to swing the section upon the trunnion to vary the pitch and direction of the thread, the other lug by its engagement With the Walls of the recess forming a support for the adjacent side of the die-section.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

NEUMAN TOBIAS.

Witnesses:

CALEB ALEXANDER BUCKLEY, EMANUEL ROMERO. 

